ngā rautaki karbona
He kāwanatanga mōhio ki ngā rau hukahuka e whakawhanake ana i tētahi kāwāhi hangarū e pā ana ki ētahi whenua, ka whakaora i ngā mahi noa rānei ki runga i ōna mana moeke ki te rite mano ki te mana motuhake. Nō reira, ko ēnei rau hukahuka tuatahi he mea kino e pai ana i te whakangungu me te whakamahere haerenga. Ka hangaia ngā rau hukahuka i runga i ngā herehere whakapono, i te weheweheanga o te wā me te whatumanawa hei whakauru i ngā hukahuka e pai ana i te aha nā runga i te tokoiti o te mana. Ka tae atu ngā rau hukahuka nei ki ētahi āhuatanga e rerekē ana, inaianei ko ngā rau hukahuka matihiko, ko ngā rau hukahuka whakamua, ko ngā kākahu raranga, me ngā momo whakamutunga. Ko ngā whakamahi kei roto i ngā ratonga whakatere rangi, whakatere whenua, whakatere hīkoi, me ngā ratonga ā-poro. Hei tēnei wā, ka whakauru ngā rau hukahuka matihiko i ngā rara hou me ngā whakahaere hanga kia whai mana rawa pea. Ka taea e ia te whakarite i ngā āhuatanga mate puta noa iho, pērā i te whakakore i te kōpikopiko me te whakapāngia i te UV, kia pai ai te whakamahi i roto i te ao poroiti me te ao porowhā. Ki te whai mana ngā āhuatanga o te rau hukahuka, ka taea te hanga i ngā āhua me ngā hanga whakarite, ahakoa te whakangungu, ka whakamana i te whakahaere i ngā whakahaere. Ka tirotiro haere ngā rau hukahuka pai ki te whakamana i te whakangungu, te tokoiti, me ngā whakahaere, hei whakarite i ngā paerewa ā-mahi me ngā whakaaetanga.
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